CN101623597A - Novel constant-temperature tubular membrane component - Google Patents
Novel constant-temperature tubular membrane component Download PDFInfo
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- CN101623597A CN101623597A CN200910127979A CN200910127979A CN101623597A CN 101623597 A CN101623597 A CN 101623597A CN 200910127979 A CN200910127979 A CN 200910127979A CN 200910127979 A CN200910127979 A CN 200910127979A CN 101623597 A CN101623597 A CN 101623597A
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Abstract
The invention relates to a novel constant-temperature tubular membrane component, which has the advantages of low energy consumption, low density polarization effect, low temperature polarization effect, high loading density, enough mechanical strength, and the like, is suitable for membrane separation processes of pervaporation, vapor permeation, micro-filtration, ultra-filtration, reverse osmosis, nano-filtration, electrodialysis, and the like, and is also suitable for a catalytic membrane reactor combining the membrane separation with the catalytic reaction.
Description
Technical field
The present invention relates to a kind of novel constant-temperature tubular membrane component, be applicable to film separation processes such as infiltration evaporation, steam infiltration, micro-filtration, ultrafiltration, counter-infiltration, nanofiltration, electrodialysis, combine to strengthen the catalytic film reactor of esterification, ester exchange reaction etc. also applicable the separation with film with catalytic reaction.
Background technology
Infiltration evaporation (pervaporation is called for short PV, is called pervaporation again) and steam infiltration (Vapor Permeation is called for short VP) are a kind of new membrane isolation technics.This technology is used for the separation of liquid mixture, and its outstanding advantage is to realize the separation task that traditional methods such as distillation, extraction, absorption are difficult to finish with low energy consumption.It is particularly suitable for, and the way of distillation is difficult to separate or the separation of indissociable nearly boiling point, constant boiling point mixture and isomer; To a small amount of in organic solvent and the mixed solvent, minor amount of water remove and waste water in the separation of a small amount of organic pollution have advantage significantly technical and economically; Can also reaction product constantly be removed with biology and chemical reaction coupling, reaction conversion ratio is obviously improved.So the infiltration evaporation technology has broad application prospects and market at medication chemistry and related industries field.It is the new separation technology that is in period of expansion at present, and the brainstrust of international academic community is referred to as 21st century one of the most promising high-tech.
The major part of infiltrating and vaporizing membrane separation process research and application comparative maturity is an organic high molecular layer, but because organic film has significant limitation at aspects such as heat endurance, mechanical strength and chemical stabilities, its range of application is very restricted.Compare with organic film, inorganic ceramic membrane has very big advantage in these areas, and nearly 20 for many years, and the exploitation of preparation of inorganic and infiltration evaporation separation process is domestic and international membrane science man and engineers and technicians' a research focus.In numerous inoranic membranes, zeolite molecular sieve film receives much concern because of the pore passage structure with rule, bigger specific area and strong absorption property.As JP2003-210950, CN1597072, CN1274396C etc. have all reported the preparation method of high-performance NaA molecular screen membrane, and prepared NaA molecular screen membrane can be used for the organic osmotic, evaporating and dewatering of moisture azeotropic.
Inorganic ceramic membrane, particularly molecular screen membrane are that carrier prepares by hydrothermal synthesis method with alumina tube or other earthenware in most cases.In the infiltrating and vaporizing membrane separation process, evaporate needed heat through component and come from material liquid, because the Pervaporation Separation and the temperature of film are closely related, along with the reduction of temperature, the flux of film and disposal ability will reduce significantly.Therefore, the form of membrane module directly influences the efficient of separation process.Generally speaking, material liquid enters membrane module after being preheating to uniform temperature, and along with material liquid flowing in film surface and assembly, the infiltration component vaporization is taken away heat and caused the temperature reduction of material liquid and the decay of film separative efficiency.Normally will heat once more to keep high separative efficiency by the material liquid of or several membrane modules.The shortcoming of this membrane module is to need the additional heat exchange device, and the temperature polarity effect causes the reduction of membrane separating property, thereby has increased the cost and the equipment that separate.Infiltration evaporation or vaporization process of osmosis are that a mass transfer is similar with conduct heat simultaneous separation process and other processes, also will produce concentration polarization and temperature polarization phenomena, so the flow regime of material liquid on face is the key factor that influences separation process.Increase the turbulent extent that feed liquid flows, reduce concentration boundary layer and temperature boundary layer, guarantee that fluid is more evenly distributed at face, can reduce the influence of concentration and temperature polarization membrane separating property.In order to reduce the reduction that temperature polarization in the separation process of tubular membrane infiltration evaporation and concentration polarization effect cause molecule performance, design and improvement membrane module seem particularly important, CN1795041, JP2003-93843 and JP2003-93844 have all proposed novel infiltration vaporization membrane module, the reduction of part is known clearly temperature polarization in the separation process to the influence of separating property, but do not reduce the concentration polarization in the film separation process, the membrane area of elementary membrane assembly volume filling simultaneously is low, this will increase the volume of membrane separation plant, increase preparation cost.
Summary of the invention
The objective of the invention is at inoranic membrane, particularly temperature polarization in the molecular sieve film pervasion vaporization separation process and concentration polarization effect cause technical problems such as membrane separating property reduction and running cost increase, a kind of novel constant-temperature tubular membrane component is provided, this membrane module can be used for film separation processes such as infiltration evaporation, steam infiltration, micro-filtration, ultrafiltration, counter-infiltration, nanofiltration, electrodialysis, also can be used for the film separation and combine with catalytic reaction to strengthen the catalytic film reactor of esterification, ester exchange reaction etc.
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that membrane module partly is made of tubular film 16, assembly end socket 11, package shell 17 and assembly heating chamber 33 etc.Wherein tubular film 16 closely is connected with seal washer 15, is fixed on the assembly flange 13 by flange 14 then.Material liquid enters in the annular gap 24 that separates cavity 23 and formed by tubular film 16 and heating chamber 33 by import 21.Tubular film and material liquid directly heat by the heated at constant temperature medium in the heating chamber 33, supply with the infiltration component needed heat of vaporizing.Seepage remaining liquid enters the next stage membrane module by outlet 23 eliminatings, and the infiltration steam that sees through tubular film is discharged by driving cavity 12.Heat medium in the heating chamber heats after circulated at a high speed to keep temperature constant state in cavity by import 31 and outlet 32 by the heat exchanger of outside.
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that the material of described membrane module can be stainless steel material, also can be lucite, engineering plastics, ABS resins etc. are any to be easy to process material with moulding.
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that described tubular film can be molecular screen membrane, also can other any inorganic ceramic membrane.
The invention provides a kind of novel constant-temperature tubular membrane component, the external diameter that it is characterized in that described tubular film is 10-13mm, and wall thickness is 1-3mm, and length is 1-100 centimetre.
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that described heat medium can be hot water or steam, also can be any conduction oil.
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that described membrane module can be a single channel, also can be multichannel.
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that the loading density of filling membrane area in the described elementary membrane assembly volume is 10～500m
2/ m
3
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that described membrane module can be used for infiltration evaporation, the separation of mixture also can be used for film separation processes such as micro-filtration, ultrafiltration, counter-infiltration, nanofiltration, electrodialysis in the separation process of vaporization permeable membrane.
The invention provides a kind of novel constant-temperature tubular membrane component, it is characterized in that described membrane module can be used for the film separation and combine with catalytic reaction to strengthen the catalytic film reactor of esterification, ester exchange reaction etc.
Description of drawings
Fig. 1 is the profile of membrane module.
The specific embodiment
Detailed description of main elements:
11. assembly end socket 12. drives cavity 13. assembly flanges
14. flange 15. seal washers 16. tubular films
17. package shell 18. connectors
21. the surplus liquid outlet 23. of material liquid import 22. filters separates cavity
24. annular gap 25. membrane channels
31. thermal medium import 32. thermal mediums export 33. heating chambers
With reference to Fig. 1, the present invention is a kind of novel tubular membrane module separation equipment, has advantages such as low energy consumption, low concentration polarity effect, low temperature polarity effect, high loading density and sufficient mechanical strength.Comprise membrane module and tubular film 16, membrane module is made of assembly end socket 11, package shell 17 and membrane module heating chamber 33.End socket 11 and assembly flange 13 are done with bolt and are fastenedly connected, and sealing ring is arranged between them.Connector 18 is arranged on the end socket 11, and the penetrating fluid that sees through tubular film is discharged by driving cavity 12.The surplus liquid outlet 22 of material liquid import 21 and filter lays respectively at package shell 17 bottoms and top.
Among Fig. 1, tubular film 16 closely is connected with seal washer 15, is fixed on the assembly flange 13 by flange 14 then.
Among Fig. 1, membrane module heating chamber 33 is welded on the package shell 17 by dividing plate 34.Thermal medium import 31 and thermal medium outlet 32 lay respectively at package shell 17 bottoms and top.
Among Fig. 1, on membrane module flange 13, but tubular film 16 and sealing ring 15 flanges 14 independent sealing and fixing also can be fixed by flange 14 integral sealings.
It is as follows that the tubular film assembly is used for separation process:
Material liquid to be separated enters membrane module by inlet union 21 and separates cavity 23, enters the intermediate layer 24 between tubular film and the heating chamber then, and material liquid is heated at the annular gap 24 that is formed by tubular film 16 and heating chamber, has reduced the temperature polarity effect; Material liquid forms turbulent flow easily at the annular gap 24 that is formed by tubular film 16 and heating chamber, has reduced the concentration polarization effect.The penetrating fluid that sees through tubular film enters power drive chamber 12 by membrane channels 25, by power drive as: carrier gas purges or vacuumizes discharges connector 18 with penetrating fluid.The surplus liquid of the filter that has separated is discharged by outlet 21.Material liquid is entered by membrane module bottom, is discharged by the membrane module top, guarantees that material liquid is full of membrane module.
Thermal medium enters heating chamber 33 from membrane module bottom by import 31, then thermal medium and material liquid by and stream or adverse current carry out heat exchange, discharge from the assembly top by outlet 32 at last.Thermal medium has guaranteed the thermal insulation of membrane module, has reduced the temperature polarity effect.
Membrane module of the present invention can be by in parallel or a plurality of membrane module component film separation equipments of contacting.The membrane module of prior art is taken away portion of energy in separation process owing to penetrating fluid, cause the material liquid temperature to reduce, make the separating property flux reduce greatly, thereby need heat once more by heat exchanger material liquid, and membrane module separation equipment collection of the present invention separates and heat exchange is an one, reduced equipment, reduced energy consumption and reduced the temperature polarity effect.In this assembly, the flow regime of raw material on face reaches turbulence state easily, reduced the concentration polarization effect, separates needed membrane area minimizing and cost and reduces.This membrane module has high loading density simultaneously, film easy to installation and maintenance.
Claims (9)
1, a kind of constant-temperature tubular membrane component is characterized in that membrane module is made of parts such as tubular film (16), assembly end socket (11), package shell (17) and assembly heating chambers (33); Wherein tubular film (16) closely is connected with seal washer (15), is fixed on the assembly flange (13) by flange (14) then; Material liquid enters in the annular gap (24) that separates cavity (23) and formed by tubular film (16) and heating chamber (33) by import (21); Tubular film and material liquid directly heat by the heated at constant temperature medium in the heating chamber (33), supply with the infiltration component needed heat of vaporizing; Seepage remaining liquid enters the next stage membrane module by outlet (23) eliminating, and the infiltration steam that sees through tubular film is discharged by driving cavity (12); Heat medium in the heating chamber heats by outside heat exchanger after circulated at a high speed to keep temperature constant state in cavity by import (31) and outlet (32).
2. according to the described constant-temperature tubular membrane component of claim 1, the material that it is characterized in that described membrane module is stainless steel material, lucite, engineering plastics or ABS resin.
3. according to the described constant-temperature tubular membrane component of claim 1, it is characterized in that described tubular film is a molecular screen membrane, or inorganic ceramic membrane.
4. according to the described constant-temperature tubular membrane component of claim 1, the external diameter that it is characterized in that described tubular film is the 5-50 millimeter, and wall thickness is the 1-5 millimeter, and length is 1-500 centimetre.
5. according to the described constant-temperature tubular membrane component of claim 1, it is characterized in that described heat medium is hot water, steam or conduction oil.
6. according to the described constant-temperature tubular membrane component of claim 1, it is characterized in that described membrane module is single channel or multichannel.
7. according to the described constant-temperature tubular membrane component of claim 1, it is characterized in that the loading density of filling membrane area in the described elementary membrane assembly volume is 10～500m
2/ m
3
8. according to the described constant-temperature tubular membrane component of the arbitrary claim of claim 1-7, it is characterized in that constant-temperature tubular membrane component is used for separation, micro-filtration, ultrafiltration, counter-infiltration, nanofiltration or the electrodialytic membranes separation process of infiltration evaporation, vaporization permeable membrane separation process mixture.
9. according to the described constant-temperature tubular membrane component of the arbitrary claim of claim 1-7, it is characterized in that constant-temperature tubular membrane component is used for the film separation and combines with catalytic reaction to strengthen esterification or ester exchange reaction catalytic film reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127979A CN101623597A (en) | 2008-03-25 | 2009-03-25 | Novel constant-temperature tubular membrane component |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810045054 | 2008-03-25 | ||
| CN200810045054.4 | 2008-03-25 | ||
| CN200910127979A CN101623597A (en) | 2008-03-25 | 2009-03-25 | Novel constant-temperature tubular membrane component |
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| CN101623597A true CN101623597A (en) | 2010-01-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091213A1 (en) * | 2011-12-22 | 2013-06-27 | Huang Hou-Chi | Dismountable reaction module and connecting devices therefor |
| CN103553921A (en) * | 2013-11-20 | 2014-02-05 | 山东理工大学 | Continuous dehydration esterification reaction device as well as continuous esterification reaction method |
| CN104001345A (en) * | 2013-02-25 | 2014-08-27 | 刘钢 | Nano-fibrous tubular membrane extraction apparatus |
| CN105013417A (en) * | 2015-06-04 | 2015-11-04 | 南京工业大学 | Continuous esterification micro-reaction apparatus and micro-reaction system composed of same |
| CN105836847A (en) * | 2016-05-31 | 2016-08-10 | 陕西科技大学 | Device and method for stepwise extracting mixed organic matters in high-salinity wastewater by using combined membrane |
| CN111054222A (en) * | 2019-11-29 | 2020-04-24 | 宁波大学 | Successive transfer synthesis method of molecular sieve membrane |
-
2009
- 2009-03-25 CN CN200910127979A patent/CN101623597A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013091213A1 (en) * | 2011-12-22 | 2013-06-27 | Huang Hou-Chi | Dismountable reaction module and connecting devices therefor |
| CN104001345A (en) * | 2013-02-25 | 2014-08-27 | 刘钢 | Nano-fibrous tubular membrane extraction apparatus |
| CN103553921A (en) * | 2013-11-20 | 2014-02-05 | 山东理工大学 | Continuous dehydration esterification reaction device as well as continuous esterification reaction method |
| CN103553921B (en) * | 2013-11-20 | 2015-10-28 | 山东理工大学 | Continuously dehydrating esterification device is utilized to carry out the method for continuous esterification |
| CN105013417A (en) * | 2015-06-04 | 2015-11-04 | 南京工业大学 | Continuous esterification micro-reaction apparatus and micro-reaction system composed of same |
| CN105836847A (en) * | 2016-05-31 | 2016-08-10 | 陕西科技大学 | Device and method for stepwise extracting mixed organic matters in high-salinity wastewater by using combined membrane |
| CN111054222A (en) * | 2019-11-29 | 2020-04-24 | 宁波大学 | Successive transfer synthesis method of molecular sieve membrane |
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Application publication date: 20100113 |